From d42b16f02153a5dcb2eae1938cd62bbc93a92c1f Mon Sep 17 00:00:00 2001
From: David Wendt <dcrkid@yahoo.com>
Date: Thu, 20 Feb 2020 20:29:51 -0500
Subject: [PATCH] Add stub impl of `flash.display.MovieClip`.

---
 core/src/avm2/globals.rs           | 16 +++++++++++++++
 core/src/avm2/globals/movieclip.rs | 31 ++++++++++++++++++++++++++++++
 core/src/avm2/names.rs             |  4 ++++
 3 files changed, 51 insertions(+)
 create mode 100644 core/src/avm2/globals/movieclip.rs

diff --git a/core/src/avm2/globals.rs b/core/src/avm2/globals.rs
index 52e99f8a0..ebff8da8f 100644
--- a/core/src/avm2/globals.rs
+++ b/core/src/avm2/globals.rs
@@ -7,6 +7,7 @@ use crate::avm2::script_object::ScriptObject;
 use gc_arena::{Collect, MutationContext};
 
 mod function;
+mod movieclip;
 mod object;
 
 /// This structure represents all system builtins' prototypes.
@@ -28,6 +29,7 @@ pub fn construct_global_scope<'gc>(
 
     let object_proto = ScriptObject::bare_object(mc);
     let function_proto = function::create_proto(mc, object_proto);
+    let movieclip_proto = movieclip::create_proto(mc, object_proto, function_proto);
 
     object::fill_proto(mc, object_proto, function_proto);
 
@@ -64,6 +66,20 @@ pub fn construct_global_scope<'gc>(
             .into(),
         )
         .unwrap();
+    global_scope
+        .install_dynamic_property(
+            mc,
+            QName::new(Namespace::package("flash.display"), "MovieClip"),
+            FunctionObject::from_builtin_constr(
+                mc,
+                movieclip::constructor,
+                movieclip_proto,
+                function_proto,
+            )
+            .unwrap()
+            .into(),
+        )
+        .unwrap();
 
     (global_scope, system_prototypes)
 }
diff --git a/core/src/avm2/globals/movieclip.rs b/core/src/avm2/globals/movieclip.rs
new file mode 100644
index 000000000..b1e9a2900
--- /dev/null
+++ b/core/src/avm2/globals/movieclip.rs
@@ -0,0 +1,31 @@
+//! `flash.display.MovieClip` builtin/prototype
+
+use crate::avm2::object::Object;
+use crate::avm2::return_value::ReturnValue;
+use crate::avm2::script_object::ScriptObject;
+use crate::avm2::value::Value;
+use crate::avm2::{Avm2, Error};
+use crate::context::UpdateContext;
+use gc_arena::MutationContext;
+
+/// Implements `flash.display.MovieClip`'s constructor.
+pub fn constructor<'gc>(
+    _avm: &mut Avm2<'gc>,
+    _action_context: &mut UpdateContext<'_, 'gc, '_>,
+    _this: Object<'gc>,
+    _args: &[Value<'gc>],
+) -> Result<ReturnValue<'gc>, Error> {
+    Ok(Value::Undefined.into())
+}
+
+/// Construct `MovieClip.prototype`.
+pub fn create_proto<'gc>(
+    mc: MutationContext<'gc, '_>,
+    super_proto: Object<'gc>,
+    _fn_proto: Object<'gc>,
+) -> Object<'gc> {
+    // TODO: Use `StageObject` here.
+    let movieclip_proto = ScriptObject::object(mc, super_proto);
+
+    movieclip_proto
+}
diff --git a/core/src/avm2/names.rs b/core/src/avm2/names.rs
index 05e4e429b..d1b4e0bd2 100644
--- a/core/src/avm2/names.rs
+++ b/core/src/avm2/names.rs
@@ -58,6 +58,10 @@ impl Namespace {
     pub fn public_namespace() -> Self {
         Namespace::Package("".to_string())
     }
+
+    pub fn package(package_name: &str) -> Self {
+        Namespace::Package(package_name.to_string())
+    }
 }
 
 /// A `QName`, likely "qualified name", consists of a namespace and name string.